UPDATED: Fire at Great Brook Road Under Investigation

Fire severely damaged the back of a house at 201 Great Brook Road in Groton late Friday morning. There were on injuries, and firefighters extinguished the fire about 20 minutes.

"When we got here we found heavy fire coming out from the rear of the building," said Lt. Greg Hudgens, of the Center Groton Fire Department. He said heavy smoke was blowing toward firefighters as they approached the back of the house, and they initially thought all three fours were ablaze.

They quickly realized the heavy fire was in the basement, and crews stretched a line to reach it, he said. The fire was out in 15 to 20 minutes, he said. The house has a first and second floor and a walk-out basement.

No one was home at the time, and a neighbor called to report the blaze, Hudgens said.

Neighbors said a couple lives in the house with their preschool-age daughter, who recently celebrated a birthday.

The cause of the fire remained under investigation Friday. Groton Police Lt. John Varone said the fire was "not suspicious."

The building official had not yet determined whether the house is habitable.

Emergency personnel from Poquonnock Bridge Fire Department, Center Groton Fire Department, Groton City Fire Department, Ledyard Fire Department, Groton Ambulance and L&M parademics responded to the fire.